Holy Alliance

The Holy Alliance was a coalition of the great powers of Prussia, the Austrian Empire, and the Russian Empire that was signed on 26 September 1815. The allied nations pledged to observe Christian principles in both domestic and international affairs and to restrain republican and secular ideals in favor of reactionary politics. The alliance asserted their right to intervene in other countries to oppose revolutions at the Congress of Troppau, allowing for them to crush the Revolutions of 1820. After the death of Alexander I of Russia in 1825, the alliance dissolved.